
Indicators are measurements or calculations that represent how a complex system is changing over time—for instance, the unemployment rate is an indicator of overall economic health. For the climate system, indicators offer a simple representation of how a highly complex system is changing, providing a benchmark for decision makers that can be used as a gateway into more complex and context-specific information. Indicators allow multiple audiences—including scientists, planners, policy makers, educators, and the public—to better understand and communicate the causes and effects of climate...




